Home / 422,747.27-633,407.70-209,230.46

Finding the Fourth Proportional to 422,747.27, 633,407.70 and 209,230.46

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Solution

The fourth proportional to 422,747.27, 633,407.70 and 209,230.46 is: 313,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,747.27 : 633,407.70 = 209,230.46 : x
  2. Step 2: Convert to fraction form
    422,747.27/633,407.70 = 209,230.46/x
  3. Step 3: Cross multiply
    422,747.27x = 633,407.70 × 209,230.46
  4. Step 4: Simplify right side
    422,747.27x = 132,528,183,254.48
  5. Step 5: Solve for x
    x = 132,528,183,254.48/422,747.27
  6. Step 6: Final answer
    x = 313,492.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.